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參數(shù)資料
| 型號： | HD74HC258 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | Octal Buffers And Line Drivers With 3-State Outputs 20-CFP -55 to 125 |
| 中文描述： | 四。 2比1線數(shù)據(jù)選擇器/多路轉(zhuǎn)換器（3態(tài)輸出） |
| 文件頁數(shù)： | 5/9頁 |
| 文件大小： | 55K |
| 代理商： | HD74HC258 |
HD74HC258
5
AC Characteristics
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Ta = 25
°
C
Ta = –40 to
+85
°
C
Item
Symbol
V
CC
(V)
2.0
Min Typ Max Min
Max
Unit
Test Conditions
Propagation delay t
PLH
time
—
—
115 —
145
ns
Data to Y
t
PHL
4.5
—
11
23
—
29
6.0
—
—
20
—
25
2.0
—
—
115 —
145
Select to Y
4.5
—
13
23
—
29
6.0
—
—
20
—
25
Output enable
t
ZL
2.0
—
—
150 —
190
ns
time
4.5
—
11
30
—
38
6.0
—
—
26
—
33
t
ZH
2.0
—
—
150 —
190
ns
4.5
—
13
30
—
38
6.0
—
—
26
—
33
Output disable
t
LZ
2.0
—
—
150 —
190
ns
time
4.5
—
13
30
—
38
6.0
—
—
26
—
33
t
HZ
2.0
—
—
150 —
190
ns
4.5
—
18
30
—
38
6.0
—
—
26
—
33
Output rise/fall
t
TLH
t
THL
2.0
—
—
60
—
75
ns
time
4.5
—
4
12
—
15
6.0
—
—
10
—
13
Input capacitance
Cin
—
—
5
10
—
10
pF
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|---|---|
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